Certificate under SEBI (Depositories and Participants) Regulations, 2018

October 8, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, Bandra Kurla Complex, Dalal Street, Bandra (East), Mumbai – 400 023 Mumbai – 400 051 Security Code: 532926 Symbol: JYOTHYLAB Dear Sir / Madam, Sub: Certificate under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026 In accordance with Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018, we are enclosing herewith certificate dated October 3, 2026, received from the Company’s Registrar and Share Transfer Agent viz. MUFG Intime India Private Limited for the quarter ended September 30, 2026. Kindly take the above on your record and disseminate the same for the information of investors. Thanking you, Yours faithfully, For Jyothy Labs Limited Shreyas Trivedi Head – Legal & Company Secretary Encl.: as above Jyothy Labs Limited CIN: L24240MH1992PLC128651 ‘Ujala House’, Ramkrishna Mandir Road, Kondivita, Andheri (East), Mumbai 400059. Tel: +91 022-6689 2800 | Fax: +91 022-6689 2805 info@jyothy.com | www.jyothylabs.com MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) CIN: U67190MH1999PTC118368 Registered Address: C-101, Embassy 247, L.B.S. Marg, Vikhroli (West), Mumbai - 400083. Tel: +91 22 4918 6000 www.in.mpms.mufg.com Date : 03-10-2026 The Compliance Officer/ Company Secretary JYOTHY LABS LIMITED UJALA HOUSE, RAMKRISHNA MANDIR ROAD, ............................... MUMBAI PINCODE : 400059 Sub : Confirmation Certificate under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018. Dear Sir/Madam, In reference to the above captioned regulation, we hereby confirm that the securities received from the depository participants for dematerialisation during the quarter ended 30th September 2026, were confirmed (accepted/rejected) to the depositories by us and that securities comprised in the said certificates have been listed on the stock exchanges where the earlier issued securities are listed. We hereby also confirm that the security certificates received for dematerialisation have been confirmed/rejected and the security certificates received were mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in the register of members as the registered owner within the prescribed timelines. We request you to kindly take note of the above in your records. Thanking you, Yours faithfully, For MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) Ashok Shetty Sr. Vice President-Corporate Registry MUFG Intime India Private Limited A part of MUFG Corporate Markets, a division of MUFG Pension & Market Services